Gender bias in track and chess

Last week an emerging track star became the focus of an international scandal. After 18-year-old Caster Semenya won the 800 meter world championships final by more than two seconds, the International Association of Athletics Federations announced the South African athlete was being required to undergo a gender determination test.

Apparently the South African improved her personal best time by seven seconds this year. After being cleared of doping, gender testing was the next “sensible” step, said I.A.A.F. spokesman Nick Davies.

Two finalists shared the suspicion. The New York Times reported the Italian Elisa Cusma as saying, “These kind of people should not run with us.” Mariya Savinova, the fifth place finisher from Russia, agreed: “Just look at her.”

A recent study on gender reported an odd, but related, stereotype among women chess players. In on-line games, women who are aware their opponents are male play worse than if they believe their opponents are female, notwithstanding ability levels.

Of course, gender tests are highly problematic: “Humans like categories neat,” said Alice Dreger to the New York Times, “but nature is a slob.” This didn’t stop Cusma from saying, as if to illegitimatize the track win, “For me, she’s not a woman. She’s a man.”

Perhaps Cusma would have finished higher than sixth if she had not suspected she was racing a man.